Elements is a down to earth CSS framework. It was built to help designers write CSS faster and more efficient. This framework is like a template which has all of the things you end up typing in over and over for every website you create. It is very lightweight, with only 4 files.
The carousel component manages a list of content (HTML LI elements within a UL) that can be displayed horizontally or vertically. The content can be scrolled back and forth with or without animation. The content can reference static HTML content or the list items can be created dynamically on-the-fly (with or without Ajax).
This is an article with everything you have to know about “pretty URLs”. But beware: It is an article for advanced users - not beginners. 
blackbox is an unobtrusive, in MooTools written JavaScript class, that turns a simple unordered image list into a magnificent slideshow.
With MOOdalBox you can display remote content loaded using AJAX, web 2.0 style, in an inline popup window. It is written for the mootools framework.
It can be used to display some help document, an extra options page, a registration form, etc. It eliminates the need of classic popup windows, that may get blocked by popup blockers.
This one is really great for everyone who is working with mootools. A mootools cheat sheet. Go print, paste it on your walls and work! 
“ThickBox is a webpage UI dialog widget written in JavaScript on top of the jQuery library. Its function is to show a single image, multiple images, inline content, iframed content, or content served through AJAX in a hybrid modal.” Go check it out and see the examples! Great stuff!
Here you will find “the creation of a custom navigation bar with some cute Javascript effects that will certainly impress your friends”.
Symfony is a web application framework for PHP5 projects. Symfony provides a lot of features seamlessly integrated together, such as: simple templating and helpers, cache management, smart URLs, scaffolding, multilingualism and I18N support, object model and MVC separation, Ajax support, and much more…
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Tom: really nice interview and a great person i´ve met in twitter. i just wonder when calvin is sleeping, seems he is a...
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chad: Nice interview, Cal. Of particular interest to me was the schedule question, since I have been wondering how you manage...
Carlos Bracho: because, I want to have my own Cards with my own design, with the konowledege that I’ve learned at...
mayhemstudios: @Chad Engle - Thanks for backing me up and the kind words. :) @David Airey - I must have built up my tolerance...